A county in the east, north of London, which includes the cities Hertford, Royston, and St. Albans. It also includes a portion of the forest of Quinqueroi to its south and east, and Landoine in its west.
- From The Great Pendragon Campaign

Henlow Barrow - A large barrow and faerie mound. It is used as a meeting place for druids and pagan worshippers.

Chadwell Spring

Standon Puddingstone

Pelham Hole

Devil's Dyke

Wauldon Henge

Thornhaugh Henge

The Rose Garden Maze

Aubry Banks

Noteworthy Lands

Anglian Hills - These deeply wooded and broken hills have resisted settlements for generations. The crags and watery races are said to be menaced by giants.

Chiltern Hills - A series of chalk downs stretching from the Landoine Forest in central Hertfordshire to the northern edge of Salisbury. The plentiful beechwood forests provide good furniture lumber that is harvested by many of the manor houses within the hills, particularly in the High Wycomb area. Aquifers provide water in many rivulets, kills and streams that generally flow southward into the Thames. The hills are abundant with game and the rolling grasslands provide ample food for livestock.

Ickneid Way - The oldest road in Britain, the Ickneid Way has already deviated from the old Pict and Celtic trails that linked old Anglia to Salisbury. The Romans paved this route as well, which is what traces the current road. Many of the Roman paving stones have been pilfered for use in homes or other structure. Bridges in general are minor affairs across a fast flowing stream or rivulet flowing out of the Chiltern Hills.

King's Road

Landoine Forest - The forest in central Logres that borders the north-south road between London and Lincoln. The road technically divides the Landoine Forest from the Quinqueroi forest, though there is no distinguishable difference as you ride between them. Game is hardy and plentiful in both forests.

Quinqueroi Forest - A forest in southeastern Logres, separating Caercolun from Hertford. Though the forest is large and dense, there is nothing particularly mysterious or dangerous about it. Fey places are few and far between, if they are found at all. Game is hardy and plentiful.

Lea River - This river springs from the bedrock forming the foundation of St. Alban's Monastery. It supposedly sprang up when Joseph of Arimathea used the powers of the Grail to bring water to the thirsty tribesmen who had gathered there. It is a pleasant, slow flowing river fed by many smaller tributaries running down from the Chiltern Hills to the west. Most of its length is lined with farmland or livestock fields.

Thames River - Coming close to the southern border of Hertfordshire, the Thames river is the destination for most of the small streams, kills and rivulets flowing out of the Chiltern Hills. The river is already broad and deep by the time it reaches Rickmansworth lands.

Arms

The comptal army can field roughly 200 knights, and 1200 footmen (not counting garrisons.)* This is standard for a Cymric county the size of Hertford. The core army of Earl Hertford consists of three eschilles of knights: the honor guard led by Sir Rhomine, youngest brother of Earl Aralyd; the Earl's personal companions; a unit of minor vassals, including the player knights, led by Sir Caramig; and professional soldiers armed with great spears and hauberks of chain, led by Sir Rholyd. When the lord hires mercenaries they usually come with their own commanders. Lastly, each Knight Banneret owns from 7-12 and can together field another 100 knights. The remaining 40 or so knights are usually split into 3 or 4 eschilles and their commanders are designated by Earl Hertford as he sees fit before the battle.

*Note: This number will change throughout the years and reflects the maximum amount available to Earl Hertford. In 485 this number is more like 75 knights and 500 footmen.